If the Secretary of State is considering whether to give a direction to a local planning authority under section 21 in relation to a development plan document or other local development document, he may direct the authority not to take any step in connection with the adoption of the document—
until the time (if any) specified in the direction, or
until the direction is withdrawn.
A document to which a direction under this section relates has no effect while the direction is in force.
A direction given under this section in relation to a document ceases to have effect if a direction is given under section 21 in relation to that document.